CN212362036U

CN212362036U - Feeding device for hazardous waste treatment system

Info

Publication number: CN212362036U
Application number: CN202020237219.4U
Authority: CN
Inventors: 丁延泽; 侯国华; 那永新; 王永锋
Original assignee: Tianjin Chenchuang Environment Engineering Science & Technology Co ltd
Current assignee: Tianjin Chenchuang Environment Engineering Science & Technology Co ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2021-01-15
Anticipated expiration: 2030-03-02

Abstract

The utility model relates to a feeding device for a hazardous waste treatment system, which comprises a vertical blanking section and a push rod feeding section, wherein the vertical blanking section comprises a weighing hopper, a vertical chute, a first-level sealing door and a second-level sealing door, the weighing hopper is communicated with the vertical chute, the vertical chute is provided with the first-level sealing door and the second-level sealing door, the push rod feeding section comprises an inclined chute with a water jacket, a material pusher, a fire door and a furnace entering section, the inclined chute is arranged obliquely relative to the horizontal plane, the inclination angle is more than or equal to 45 degrees, the utility model adopts the inclined chute with the water jacket with a large inclination angle to ensure that materials can smoothly enter an incinerator under the cooperation of the material pusher, meanwhile, the utility model can effectively avoid the over-temperature phenomenon, and simultaneously, the design of the three-level sealing door of the utility model has good air tightness, can effectively prevent air from leaking into the incinerator and flame from escaping, and is beneficial to the stable operation of the system.

Description

Feeding device for hazardous waste treatment system

Technical Field

The utility model relates to a hazardous waste handles technical field, especially relates to a feed arrangement for hazardous waste processing system.

Background

With the rapid development of the industry in China, the quantity of various dangerous wastes is also increased rapidly, the treatment of the dangerous wastes is an important environmental problem facing China at present, and according to the requirement of the national standard for dangerous waste incineration, the most main treatment means of the dangerous solid wastes is the incineration treatment method at present.

The feeding system in the incineration treatment of the dangerous solid wastes has the function of feeding the wastes safely, stably and controllably, and avoiding influencing the combustion condition of the incinerator. Typical feeding equipment comprises a grab bucket, a chain plate conveyor, a screw feeder, a push rod feeder and a sludge pump, the feeding amount of a traditional feeding device is controlled by volume, but the parameter of the bulk density of dangerous solid waste is often changed greatly, so that the feeding amount is not particularly accurate, and in addition, the traditional push rod feeder is frequently blocked, jammed, tempered and over-temperature and other conditions in the operation, the normal feeding is influenced, and the adverse effect is caused on the normal operation of the whole set of incineration device. In conclusion, how to solve and reduce the risks of jamming, blockage, tempering and the like in the feeding process and ensure the normal operation of feeding becomes an urgent issue to be solved in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a big inclination push rod feed arrangement for hazardous waste processing system.

The utility model discloses a realize through following technical scheme:

the utility model provides a feed arrangement for hazardous waste processing system, its characterized in that, including vertical blanking section and push rod feeding section, perpendicular blanking section is including weighing hopper, perpendicular chute, one-level sealing door and second grade sealing door, the hopper lower extreme and the perpendicular chute intercommunication of weighing, perpendicular chute upper portion is equipped with one-level sealing door, and perpendicular chute middle part is equipped with the second grade sealing door, push rod feeding section is including oblique chute, stoker and prevent fire door, the relative horizontal plane slope setting of oblique chute, oblique chute outer wall are equipped with the water jacket along circumference, perpendicular chute lower extreme is linked together with oblique chute upper portion, oblique chute lower extreme is linked together with burning furnace, and oblique chute upper end is equipped with the stoker, and the oblique chute afterbody is close to the position of burning furnace and is equipped with prevents fire door.

According to the above technical scheme, preferably, the material pusher comprises a material pushing box body and a hydraulic cylinder connected with the material pushing box body.

According to the technical scheme, preferably, gaps are formed between the periphery of the material pushing plate and the inner wall of the inclined chute.

According to the technical scheme, preferably, the position of the inner wall of the inclined chute, which is close to the fireproof door, is provided with the spraying cooling pipe.

According to the technical scheme, preferably, the included angle between the inclined chute and the horizontal plane is greater than or equal to 45 degrees.

The utility model has the advantages that:

the utility model discloses low in manufacturing cost, the installation is maintained conveniently, the operation is reliable and stable, the setting of the hopper of weighing is controlled to the material volume that gets into burning furnace and is made more accurate, adopts tertiary sealing door design, has good gas tightness, can prevent effectively that the air from leaking into and burn burning furnace and flame escape, the oblique chute that has the water jacket can guarantee that the material gets into smoothly under the cooperation of stoker and burns in the burning furnace, also can effectively avoid the emergence of overtemperature prote phenomenon simultaneously, is favorable to the steady operation of system.

Drawings

Fig. 1 is a sectional view of the front view structure of the present invention.

In the figure: 1. weighing a hopper; 2. a primary sealing door; 3. a vertical chute; 4. a secondary sealing door; 5. a water jacket; 6. an inclined chute; 7. a pusher; 8. a spray cooling pipe; 9. a fire door; 10. and (5) entering a furnace section.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in the figure, the utility model comprises a vertical blanking section and a push rod feeding section, wherein the vertical blanking section comprises a weighing hopper 1, a vertical chute 3, a first-stage sealing door 2 and a second-stage sealing door 4, the lower end of the weighing hopper 1 is communicated with the vertical chute 3, the weighing hopper 1 can receive the supplied materials of a grab bucket, a chain plate machine, a screw conveyor or a lifter, the upper part of the vertical chute 3 is provided with the first-stage sealing door 2, the middle part of the vertical chute 3 is provided with the second-stage sealing door 4, the vertical chute 3 comprises two sections of channels which are arranged along the longitudinal direction, the end part of the channel arranged above is provided with the first-stage sealing door 2, the second-stage sealing door 4 is arranged between the two channels, when the weight in the weighing hopper 1 reaches a set value, the first-stage sealing door 2 is opened and is conveyed to the second-stage sealing, the inclined chute 6 is obliquely arranged relative to a horizontal plane, a water jacket 5 is arranged on the outer wall of the inclined chute 6 along the circumferential direction, the lower end of the vertical chute 3 is communicated with the upper part of the inclined chute 6, the lower end of the inclined chute 6 is communicated with the incinerator, a material pusher 7 is arranged at the upper end of the inclined chute 6, a fireproof door 9 is arranged at the position, close to the incinerator, of the tail part of the inclined chute 6, and the fireproof door 9 is installed between the inclined chutes 6 through flange connection. In the feeding process, hopper 1 of weighing receives the material, one-level sealing door 2 opens after weight reaches the setting value, through vertical chute, carry before second grade sealing door 4, one-level sealing door 2 closes this moment, second grade sealing door 4 opens, the material is through the oblique chute 6 of big inclination reachs before preventing fire door 9, prevent that fire door 9 opens after second grade sealing door 4 closes, start stoker 7, the material is through self gravity and stoker 7 supplementary swift current income incinerator, stoker 7 retreats to the initial position, prevent that fire door 9 closes, thereby accomplish a feeding action. In this example, the actions of the pusher 7, the sealing door and the fireproof door 9 are all controlled by hydraulic cylinders, and are divided into two operation modes, namely a central control mode and a field control mode, wherein the field operation is that each unit can independently operate, but the central control operation is automatically operated under the logic linkage state based on the feeding system. The utility model discloses low in manufacturing cost, the installation is maintained conveniently, the operation is reliable and stable, the setting of hopper 1 of weighing is controlled to the material volume that gets into burning furnace and is made more accurate, adopt tertiary sealing door design, good gas tightness has, can prevent effectively that the air from leaking into and burn burning furnace and flame escape, the inclined chute 6 that has water jacket 5 can guarantee that the material gets into smoothly under the cooperation of stoker 7 and burns in the burning furnace, also can effectively avoid the emergence of overtemperature prote phenomenon simultaneously, be favorable to the steady operation of system.

According to the above embodiment, the end of the chute 6 is preferably connected to the incinerator through the furnace inlet section 10, so as to ensure that the material can smoothly enter the incinerator by the aid of the material pusher 7 and the self-gravity.

According to the above embodiment, preferably, the material pusher 7 comprises a material pushing box body and a hydraulic cylinder connected with the material pushing box body, and hydraulic transmission is adopted, so that the movement is sensitive, the operation is stable, and the stroke control is accurate.

According to the above embodiment, preferably, there is a gap between the periphery of the material pushing plate and the inner wall of the inclined chute 6, the material pusher 7 assists in feeding, and a sufficient gap is reserved between the material pushing plate and the inclined chute 6, so as to ensure smooth reciprocating motion of the material pusher 7 during operation.

According to the above embodiment, preferably, the inner wall of the inclined chute 6 is provided with the spray cooling pipe 8 at a position close to the fireproof door 9, so as to further ensure that the phenomenon of overtemperature tempering cannot occur in the system.

According to the above embodiment, the inclined chute 6 preferably has an included angle of more than 45 degrees with the horizontal plane, and the design of the inclined chute 6 with a large inclined angle can ensure that the materials can be basically dropped into the incinerator by self gravity.

The utility model discloses low in manufacturing cost, the installation is maintained conveniently, the operation is reliable and stable, the setting of hopper 1 of weighing is controlled to the material volume that gets into burning furnace and is made more accurate, adopt tertiary sealing door design, good gas tightness has, can prevent effectively that the air from leaking into and burn burning furnace and flame escape, the inclined chute 6 that has water jacket 5 can guarantee that the material gets into smoothly under the cooperation of stoker 7 and burns in the burning furnace, also can effectively avoid the emergence of overtemperature prote phenomenon simultaneously, be favorable to the steady operation of system.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a feed arrangement for hazardous waste processing system, its characterized in that, including vertical blanking section and push rod feeding section, perpendicular blanking section is including weighing hopper, perpendicular chute, one-level sealing door and second grade sealing door, the hopper lower extreme and the perpendicular chute intercommunication of weighing, perpendicular chute upper portion is equipped with one-level sealing door, and perpendicular chute middle part is equipped with the second grade sealing door, push rod feeding section is including oblique chute, stoker and prevent fire door, the relative horizontal plane slope setting of oblique chute, oblique chute outer wall are equipped with the water jacket along circumference, perpendicular chute lower extreme is linked together with oblique chute upper portion, oblique chute lower extreme is linked together with burning furnace, and oblique chute upper end is equipped with the stoker, and the oblique chute afterbody is close to the position of burning furnace and is equipped with prevents fire door.

2. The feeding device for hazardous waste disposal system of claim 1, wherein said pusher comprises a pusher housing and a hydraulic cylinder connected to the pusher housing.

3. The feeding device for hazardous waste disposal system of claim 2, wherein the periphery of the pusher housing has a clearance with the inner wall of the chute.

4. The feeding device for hazardous waste disposal system of claim 3, wherein said chute inner wall is provided with a shower cooling pipe at a position close to the fire door.

5. The feeding device for hazardous waste disposal system of any one of claims 1 to 4, wherein said inclined chute is at an angle of 45 ° or more to the horizontal.